9th Class Biology Past Paper 2018 Evening
Note: Biology 2nd Time Paper of 9th Class.
Group-II (Subjective) 48 Marks
Part– I
Q.2 Write short answers to any FIVE (5) questions: (10)
(i) What is meant by biosphere and zone of life?
(ii) Compare cell level and tissue level.
(iii) What are quantitative observations? Give an example.
(iv) What is meant by deductions?
(v) What is the difference between extinct and endangered species?
(vi) Differentiate between flora and fauna.
(vii) Give two principles of cell theory.
(viii) What was discovered by Schleiden and Schwann?
Q.3 Write short answers to any FIVE (5) questions: (10 Marks)
(i) Describe non-disjunction.
(ii) How does cytokinesis take place in plant cells?
(iii) What is metastasis?
(iv) What is the effect of pH on the rate of enzyme action?
(v) Describe the induced-fit model.
(vi) What is cellular respiration?
(vii) What is photosynthesis? Write its chemical equation.
(viii) Describe alcoholic fermentation.
Q.4 Write short answers to any FIVE (5) questions: (10 Marks)
(i) Define nutrition.
(ii) Write the benefits of mastication.
(iii) Differentiate between ingestion and digestion.
(iv) What is WFP?
(v) Write down two functions of roots in plants.
(vi) Write the difference between source and sink.
(vii) Why is dengue fever dangerous for humans?
(viii) How many cells are found in blood? Write two types.
PART-II
Note: Attempt any TWO (2) questions.
Q.5
(a) Describe unicellular organization and colonial organization. (5 Marks)
(b) Write the structure and functions of xylem and phloem tissues. (4 Marks)
Q.6
(a) Explain the effects of temperature and substrate concentration on the rate of enzyme action. (5 Marks)
(b) Write a note on the energy budget of respiration. (4 Marks)
Q.7
(a) Describe the importance of fertilizers. (5 Marks)
(b) Write a note on the ABO blood group system. (4 Marks)